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A low-cost Analog Front-End (AFE) transmitter designs for OFDM visible light communications
Fuada S.a, Adiono T.a, Putra A.P.a, Aska Y.a
a Microelectronic Center – Pusat Penelitian Mikroektronika, VLC Research Group ITB, PAU Building, ITB Campus, Bandung city, West Java, 40132, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2016 IEEE.One of major challenges in optical communications based visible light is nonlinearity effects which comes from LEDs as light sources. These challenges are exist when VLC systems use analog modulation such as OFDM. Therefore it needs special requirements to design Analog Front-End (AFE), especially at transmitter side. LED driver must be operated at linear mode. In this paper we propose a low cost and simple linear analog AFE transmitter for VLC. According to these problem, the main topic in this paper is to describe a low complexity of AFE transmitter circuit design based OFDM signal. Describing contents consist of: 1) channels model with 3×3×3 of room sizes and single LED, 2) non-linearity LED model transfer function which cover I-V, P-V, and P-I characteristics, 3) proposed AFE transmitter which cover variable non-inverting amplifier, offset adjuster and current-sink LED driver topology.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Analog front end,Inverting amplifiers,LED drivers,Nonlinearity effect,OFDM modulation,Requirements to designs,Transmitter circuits,Transmitter design[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Analog Front-End (AFE),LED driver,OFDM modulation,Transmitter,Visible Light Communication[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1109/ISESD.2016.7886750[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]